Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem
This is a pre-copyedited, author-produced version of an article accepted for publication in Journal of Plankton Research following peer review. The version of record Svensen, C., Antonsen, M.T. & Reigstad, M. (2018). Small copepods matter: Population dynamics of Microsetella norvegica in a high-...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Oxford University Press (OUP)
2018
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Online Access: | https://hdl.handle.net/10037/14438 https://doi.org/10.1093/plankt/fby019 |
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ftunivtroemsoe:oai:munin.uit.no:10037/14438 2023-05-15T14:27:27+02:00 Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem Svensen, Camilla Antonsen, Maria Terese Reigstad, Marit 2018-06-04 https://hdl.handle.net/10037/14438 https://doi.org/10.1093/plankt/fby019 eng eng Oxford University Press (OUP) Journal of Plankton Research info:eu-repo/grantAgreement/RCN/POLARPROG/226415/Norway/Bridging marine productivity regimes: How Atlantic advection affects productivity, carbon cycling and export in a melting Arctic Ocean// Svensen, C., Antonsen, M.T. & Reigstad, M. (2018). Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem. Journal of Plankton Research , 40(4), 446-457. https://doi.org/10.1093/plankt/fby019 FRIDAID 1629647 doi:10.1093/plankt/fby019 0142-7873 1464-3774 https://hdl.handle.net/10037/14438 openAccess VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1093/plankt/fby019 2021-06-25T17:56:16Z This is a pre-copyedited, author-produced version of an article accepted for publication in Journal of Plankton Research following peer review. The version of record Svensen, C., Antonsen, M.T. & Reigstad, M. (2018). Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem. Journal of Plankton Research , 40(4), 446-457 is available online at: https://doi.org/10.1093/plankt/fby019 . We investigated the population dynamics of a small and little-studied harpacticoid copepod, Microsetella norvegica , in a sub-Arctic Norwegian fjord (Balsfjord 69°N). We sampled with a 90 μm mesh WP-2 net and a 20 L Go-Flo bottle and found that the WP-2 under-sampled all juvenile stages. The abundance and biomass were high, peaking in June with 9349 × 10- 3 ind. m −2 and 1678 mg C m −2 . Microsetella were most abundant in the surface, but females and males demonstrated a distinct migration to below 50 m from October to March. Consistently, individual female body carbon content was highest in October (0.39 μg C ind −1 ) and lowest in March (0.18 μg C ind −1 ). Males were present throughout the year, and females with eggs were found from April to September. The average clutch size was 11 ± 2 eggs female −1 , and our study supports the observation that females can release their egg sac before the eggs have hatched, possibly to produce a new one. With its high abundance and biomass, a flexible reproductive strategy and specialized feeding preferences, M. norvegica is likely a key species in high-latitude coastal ecosystems. Article in Journal/Newspaper Arctic Arctic Balsfjord Copepods University of Tromsø: Munin Open Research Archive Arctic Balsfjord ENVELOPE(19.227,19.227,69.240,69.240) Journal of Plankton Research 40 4 446 457 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Svensen, Camilla Antonsen, Maria Terese Reigstad, Marit Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
description |
This is a pre-copyedited, author-produced version of an article accepted for publication in Journal of Plankton Research following peer review. The version of record Svensen, C., Antonsen, M.T. & Reigstad, M. (2018). Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem. Journal of Plankton Research , 40(4), 446-457 is available online at: https://doi.org/10.1093/plankt/fby019 . We investigated the population dynamics of a small and little-studied harpacticoid copepod, Microsetella norvegica , in a sub-Arctic Norwegian fjord (Balsfjord 69°N). We sampled with a 90 μm mesh WP-2 net and a 20 L Go-Flo bottle and found that the WP-2 under-sampled all juvenile stages. The abundance and biomass were high, peaking in June with 9349 × 10- 3 ind. m −2 and 1678 mg C m −2 . Microsetella were most abundant in the surface, but females and males demonstrated a distinct migration to below 50 m from October to March. Consistently, individual female body carbon content was highest in October (0.39 μg C ind −1 ) and lowest in March (0.18 μg C ind −1 ). Males were present throughout the year, and females with eggs were found from April to September. The average clutch size was 11 ± 2 eggs female −1 , and our study supports the observation that females can release their egg sac before the eggs have hatched, possibly to produce a new one. With its high abundance and biomass, a flexible reproductive strategy and specialized feeding preferences, M. norvegica is likely a key species in high-latitude coastal ecosystems. |
format |
Article in Journal/Newspaper |
author |
Svensen, Camilla Antonsen, Maria Terese Reigstad, Marit |
author_facet |
Svensen, Camilla Antonsen, Maria Terese Reigstad, Marit |
author_sort |
Svensen, Camilla |
title |
Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem |
title_short |
Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem |
title_full |
Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem |
title_fullStr |
Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem |
title_full_unstemmed |
Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem |
title_sort |
small copepods matter: population dynamics of microsetella norvegica in a high-latitude coastal ecosystem |
publisher |
Oxford University Press (OUP) |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/14438 https://doi.org/10.1093/plankt/fby019 |
long_lat |
ENVELOPE(19.227,19.227,69.240,69.240) |
geographic |
Arctic Balsfjord |
geographic_facet |
Arctic Balsfjord |
genre |
Arctic Arctic Balsfjord Copepods |
genre_facet |
Arctic Arctic Balsfjord Copepods |
op_relation |
Journal of Plankton Research info:eu-repo/grantAgreement/RCN/POLARPROG/226415/Norway/Bridging marine productivity regimes: How Atlantic advection affects productivity, carbon cycling and export in a melting Arctic Ocean// Svensen, C., Antonsen, M.T. & Reigstad, M. (2018). Small copepods matter: Population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem. Journal of Plankton Research , 40(4), 446-457. https://doi.org/10.1093/plankt/fby019 FRIDAID 1629647 doi:10.1093/plankt/fby019 0142-7873 1464-3774 https://hdl.handle.net/10037/14438 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1093/plankt/fby019 |
container_title |
Journal of Plankton Research |
container_volume |
40 |
container_issue |
4 |
container_start_page |
446 |
op_container_end_page |
457 |
_version_ |
1766301195517820928 |